The mocking ones are strange creatures born eons ago in the great underworlds of ancient Mars. In the distant time before the Deluge, they may have come to Earth through any trades humans may have once had with the martians, or simply on martian warships. On Earth they live much as the did on Mars, squatting in underground ruins and caverns of suitable size to support their eating habits.

They appear as enormous balls of pallid white flesh with rudimentary eyes and mouths. Their arms are little more than flippers or rude tendrils covered with a milky yellow substance. Their legs are thin and strangely black and squamous, ending in sharp talons. They are known for their strange gait, which is obviously caused by their unusual body shape.

Mocking ones are master mimics of sound, and can produce a wide variety of noises through the strange undulations of their mouth and vibrations from deep within their fleshy mass. Sight unseen, it is nearly impossible for humans to differentiate the sounds made by a mocking one from those made by the thing they are imitating. Since they tend to live in underground/dungeon environments, the sounds they produce range from such things as doors slamming, humans screaming in agony, the bellowing of ancient monsters, or the din of battle. A group of these creatures would make a strange set of sounds indeed!

These calls are typically used for matting, with particularly hard to replicate dungeon sounds presumably being more impressive to the females of the species. It also sometimes has the effect of luring in prey, which mocking ones typically first subdue with their paralyzing flippers (paralyzation lasts 3d6 rounds, though a subsquent save made while still paralyzed may lengthen this time to 3d6 turns). After all creatures are paralyzed, and not before, the mocking ones will begin to slowly dismantle their meal with their claws and mouth, dealing 1d3 damage each round.